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Related Experiment Video

Updated: Jul 14, 2026

Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology

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Published on: May 26, 2015

Atrio-ventricular block during left atrial flutter ablation.

Franco Zoppo¹, Emanuele Bertaglia, Glauco Brandolino

¹Dipartimento di Cardiologia, Ospedale Civile Mirano, Venice, Italy. franco-zoppo@vodafone.it

Pacing and Clinical Electrophysiology : PACE

|June 23, 2007

Summary

Catheter ablation for atrial fibrillation unexpectedly caused a left atrial flutter. Pace mapping the mitral annulus helped identify dislodgement of the atrioventricular node, a rare complication during cardiac ablation procedures.

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Last Updated: Jul 14, 2026

Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology

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Robotic Ablation of Atrial Fibrillation

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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

Published on: February 26, 2013

Area of Science:

Cardiology
Electrophysiology
Medical Case Reports

Background:

Catheter ablation is a standard treatment for atrial fibrillation.
Pulmonary vein isolation is the primary target during ablation for atrial fibrillation.

Observation:

During ablation, atrial fibrillation organized into a distinct left atrial flutter.
Mapping identified the anterior left atrium, between the mitral annulus and septum, as critical for flutter ablation.

Findings:

Radiofrequency pulses led to a complete atrioventricular block.
This suggests a potential dislodgement of the compact atrioventricular node.

Implications:

Pace mapping of the mitral annulus is proposed as a method to detect atrioventricular node dislodgement.
Highlights a rare but significant complication during complex cardiac ablation procedures.